Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Pergunta: Nomeie o grande prêmio para casey stoner e circuito de losail
 ###Tabelas: CREATE TABLE development_regions (development_regions_id AUTO_INCREMENT PRIMARY KEY, County VARCHAR, Exports (US$ mil) VARCHAR, Percent of total exports VARCHAR, Imports (US$ mil) VARCHAR, Percent of total imports VARCHAR) CREATE TABLE nominations (nominations_id AUTO_INCREMENT PRIMARY KEY, Week 1 VARCHAR, Week 2 VARCHAR, Week 3 VARCHAR, Week 4 VARCHAR, Week 5 VARCHAR, Week 6 VARCHAR, Week 7 VARCHAR, Week 8 VARCHAR, Week 9 VARCHAR, Week 10 FINAL VARCHAR) CREATE TABLE former_members (former_members_id AUTO_INCREMENT PRIMARY KEY, School VARCHAR, Location VARCHAR, Mascot VARCHAR, County VARCHAR, Year Joined VARCHAR, Previous Conference VARCHAR, Year Left VARCHAR) CREATE TABLE leading_points_scorers (leading_points_scorers_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, Nation VARCHAR, Points INT, Games INT, Pts/game INT) CREATE TABLE grands_prix (grands_prix_id AUTO_INCREMENT PRIMARY KEY, Round INT, Date VARCHAR, Grand Prix VARCHAR, Circuit VARCHAR, 125cc winner VARCHAR, 250cc winner VARCHAR, MotoGP winner VARCHAR, Report VARCHAR)  
SELECT Grand Prix FROM grands_prix WHERE MotoGP winner = casey stoner AND Circuit = losail